The KG-94A is the tactical, ruggedized version of the KG-94. The KG-94A has round, militarized connectors which enable this equipment to be either bench mounted or 19" rack mounted The KG 94A is a full duplex key generator, providing cryptographic security for all classifications of digital data traffic, encrypting and decrypting data at rates from 9.6 Kbps to 13 Mbps. The KG-94A provides digital trunk encryption in association with the AN/TYC-39, AN/TTC-42, and the digital group multiplexer (DGM) equipment, as well as in non-TRI-TAC applications The KG-94A used inconjunction with the Interface Adaptor Unit, is a direct replacement for the KG-27 in those systems using the TD-660 multiplexer. The KG-94A provide trunk encryption for the Army’s Mobile Subscriber Equipment program. The KG-94/194/94A/194A are all cryptographically compatible with each other, as well as with the KG-81 and KG-95 within their respective data rates when used in the traditional key mode.